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Log in or Sign up. Find Trucking Jobs. Dec 22, Yes, let employers and TruckersReport text me with new opportunities, job alerts and other career information to the number I provided. There is no charge for this service, but standard message and data rates may apply. GrapeApeDec 22, Hillman' had a few argosy a while back had the same problem.

Try everything in the end they got a radiator specialist to custom make a new radiator end of problem. They're just not big enough to keep engine cool. Last edited: Dec 23, Pipe 40Dec 22, The fan stat which tells the fan to come on may be the problem. If you have thermostats you would probably want a fan stat. Also the setting in the ecm may not be correct.

The fan stat on an electronic engine actually tells the ecm to turn on the fan. I at one time was hauling 82, lbs of lumber for 2 weeks for miles, decided to let the fan do it's thing automatically. I have not had any negative issues from running in my truck in the summer time. I would be one of those trucks if it were not for my 's or 's. Dec 23, Jan 5, I have In chicago winter idle temp goes below f but uphill loaded goes over f abd then fan turns on.

My cabin heat doesnt seem to work. It blows hot always. Is it a bad thermostat or something else? LJan 5, Show Ignored Content. Draft saved Draft deleted. Your username or email address: Do you already have an account? No, create an account now. Yes, my password is: Forgot your password?Menu Freight Relocators. Forums New posts Search forums. Media New media New comments Search media. Resources Latest reviews Search resources.

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60 series detroit bad thermostat

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For a better experience, please enable JavaScript in your browser before proceeding. Detroit Series 60 Thermostat question. Thread starter Hanadarko Start date Nov 6, Tags detroit series Hanadarko Well-Known Member. I'm planning on replacing my thermostats on my 99 S60 this weekend and was wondering if anyone had any tips on this project or advice View attachment View attachment View attachment Duck Quack Supporter.

Hanadarko said:. I would put it in the freezer and see what happens. Unless it was degrees outside while you were holding that I would say it's broken. SkateBoard said:. I did toss it in F water. I didnt notice anything odd. It didnt swell or get larger either. Maybe they don't close unless the temp is 30 or less? I don't know.Also See for Series 60 Operator's manual - pages Operator's manual - pages. Page of 23 Go. Quick Links. See also: Operator's Manual.

Table of Contents. The bullgear is a straight cut. Camshaft, Camshaft. Drive Gear and Camshaft Gear Cover will be installed and removed as a assembly. For engines equipped with a Compact Gear Train Assembly remove camshaft assembly as follows. Rotate the engine by hand to get the No.

Detroit Diesel Series 60 Common Problems and Failures

Do this by installing the crankshaft. Detroit Diesel 60 Operator's Manual pages. This new assembly offers weight savings, noise reduction and height reduction. The bullgear is a straight cut gear that now rides on bushings.

Page 2 1. Remove the five bolts for the camshaft gear cover inspection plate and remove the plate.

Help with Series 60 thermostat selection

To verify camshaft timing proceed as follows: [a] Look at the timing hole in the camshaft gear. Page 3 [c] If the timing holes are not aligned correctly remove the crankshaft timing pin and rotate the engine one more complete revolution. When the timing pin drops back into the hole in the crankshaft check the timing of the camshaft.

Refer to step 2.Almost by definition, truckers have always been practically obsessed with engine reliability fuel mileage. To meet the demand for a new type of engine that would help usher turbo-diesels into this millennium, Detroit Diesel a subsidiary of Chrysler AG introduced the Series 60 as its industry trump car. Though the millions of 60s produced since have generally delivered on Chrysler's promise, many are beginning to show their age in some rather unseemly ways. Older Detroit engines are prone to coolant leakage in the EGR exhaust gas recirculation system.

Though the problem is not necessarily severe, it can lead to white tail pipe smoke, mild overheating and coolant loss over time. Coolant loss will eventually become severe enough to cause serious overheating and shut-down, so fixing the EGR leak should be considered a priority. The Series 60 was one of the first in the industry to be offered with a drive-by-wire system.

This configuration does not utilize any mechanical connection between the throttle pedal and engine, relying instead on the truck's computer to modulate air delivery by demand. These systems are generally reliable, but some owners with aftermarket engine brakes have found that the engine brake requires different computer programming. Glitches in this system can lead to complete loss of throttle control. The factory starter cables on some Detroit 60 engines have been known to weather badly.

While the 4-gauge wires the engine came with were sufficient from the factory, time can reduce the cable's ability to transfer current to the starter. This lack of power leads to a no-start condition that closely mimics a dying battery, and can be recognized by battery cables that run much warmer while starting the truck than they should. In a bid to save fuel, the engineers at Detroit designed the 60 to idle at very low speed.

However, it took Detroit about 10 years to realize that the engine's idle speed was not fast enough to operate the oil pump. As such, many older pre engines have had lower engine bearings replaced more than once due to oil starvation.

When it comes to power, the Series 60 tends to favor the higher end of the RPM band. While this works well on paper, the 60's high RPM horsepower and low RPM fuel economy tuning have given some lead-footed drivers the impression that these engines get bad fuel economy.

The truth is quite the opposite: Detroit 60s get excellent fuel mileage, just not when they're driven at RPM. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

To submit your questions or ideas, or to simply learn more about It Still Works, contact us. Image by Flickr.

Starting Issues The factory starter cables on some Detroit 60 engines have been known to weather badly. Spun Bearings In a bid to save fuel, the engineers at Detroit designed the 60 to idle at very low speed.

About the Author This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. Photo Credits Image by Flickr.Discussion in ' Trucks [ Eighteen Wheelers ] ' started by chuckysback55Feb 14, Log in or Sign up. Find Trucking Jobs. Feb 14, 1. Yes, let employers and TruckersReport text me with new opportunities, job alerts and other career information to the number I provided.

There is no charge for this service, but standard message and data rates may apply. Feb 14, 2. Head gasket is gone, or you have a cracked head. Do an oil sample and stop running it before you spin the main bearings due to antifreeze contamination of the oil.

You're going to have to get it to a shop and have them test it. Mind you they will more than likely have to pull the head to tell if it is the gasket or the head itself. Flying FinnFeb 14, Feb 14, 3. Air compressor can also do this. HeavydFeb 14, Feb 14, 4.

Feb 16, 5. Last edited: Feb 16, Feb 16, 6. Feb 17, 7. Feb 18, 8. Oct 14, 9. Show Ignored Content. Draft saved Draft deleted. Your username or email address: Do you already have an account? No, create an account now. Yes, my password is: Forgot your password?Do you have a Series 60 engine from Detroit? For the most part, it probably runs great for you. This electronically controlled engine has a favorable history, shared between all three versions, and despite having been out of production for years now, it remains a popular choice for many operators.

60 series detroit bad thermostat

Even though this engine has been relied on by many for years, it still has its share of issues, like any other would. Below we explore some of the common issues and complaints surrounding the Detroit Series 60 engines and their possible causes. This is by no means an exhaustive list of all the problems you could experience, but they are good things to watch out for if you find that your engine isn't working the way it used to.

We've briefly discussed some of these problems in our Series 60 spotlightbut we'll dive into them a bit more fully here. It Still Runs also mentions a few of these issues. Cold starts, aptly named for starting your engine in cold temperatures, have given Series 60 engines trouble. They can lose their prime and not start properly. Using a starting fluid should help combat this issue, and you shouldn't have any other problems from it once the engine is running.

60 series detroit bad thermostat

These two sensors should be replaced at the same time to maintain proper operation. This particular issue affects Series 60 engines built before For some reason, there was a defect in some of the wrist pins that led to the separating of the piston pin and crown.

This separation allowed the connecting rod to disconnect as well, and one of the loose components would then damage the engine block, often by creating a hole through it.

This issue did not affect all pre Series 60 engines, but it was a problem that occurred and could cause catastrophic engine failure. As with most engines, it's a good idea to keep an eye on your cooling system. Overheating is the cause of many major issues with diesel engines, so maintaining this system can help with many preventable issues. This problem is also not the most common, and affects mainly those with certain kinds of aftermarket engine brakes installed.

These brakes could require different programming than what is standard on the Series 60, and the disconnect could cause a loss of throttle. If this is not the issue and you're still experiencing throttle issues, you'll probably want to take a look at your TPS throttle position sensor. This sensor works with the electronic control system in drive-by-wire applications like the Series 60 engines, allowing for the electronic control to occur. If there's an issue with your throttle, that's a good place to start.

Bearing problems, particularly spun bearings, are typically caused on older Series 60 by low oil pressure at idle.

A spun bearing occurs when there is a lack of lubrication causing overheating. The bearing can eventually seize, creating even more problems. The low oil pressure at idle is a frequently complained about issue with those particular engines, so if you have one, it's a good idea to keep an eye on your lower bearings to ensure they're getting the proper lubrication.

This system is often complained about as the cause of engine issues. This is particularly true of the EGR cooler.Overheating, check the thermostat, hoses, and radiator. Since you already replaced the radiator and deem it fit, then the thermostat is likely the culprit, as something is not allowing a fluid flow.

Sounds like your fan is not coming on. You can install a switch to turn the fan on manually. Is the air switch to the fan working properly? Does the fan clutch work? It could also be one thermostat is stuck closed, but probably not. The fan would still cool it down. If both thermostats were stuck closed it would overheat on just a small pull. In any case, it is not good to overheat the engine. It's really hard to tell with the limited information here.

If you want to get further into it, feel free to e mail me. Diesel tech for Ryder.

60 series detroit bad thermostat

Prolly water pump just did one. Have to take the front motor mount loose and either take a floor jack or engine hoist and pick the front of the engine up in.

Be careful tho looks are deceiving. Dont even try to take the pump off with out taking the egr cooler and bracket off first. If you do take the pump off first u will realize how dumb the designer of the dd60 was.

Detroit Series 60 Thermostat question

If they moved the egr coooler bracket back literally. But that fella that day must of been smoking left handed cigarettes the day he designed that engine. Patrick, permit your engine sit down for no less than 4 hrs. If its there get it into the keep, digital engine controls are computing gadget set to particular parameters so have you ever wrench compresion examine each cylynder and injector.